| Re: Need balance staff and main spring [message #9196 is a reply to message #9195] |
Sat, 18 August 2018 17:59   |
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Barney Green
Messages: 1747
Registered: February 2014
Location: Wolfsburg, Germany
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Gruen Authority |
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Ah, yes, I see, Mr. Ranfft says:
380: 16.75''', 17 jewels
381: 16.75''', 15 jewels
385: 17.5''', 17 jewels
386: 17.5''', 15 jewels
He also mentions that caliber 380/81 were introduced 1939, whereas the 385/86 are mentioned with a 1946 introduction date which would fit the observations. May be the only modification was a wider base plate?
And may be, they coexisted for a while?
Gruen, Gruen, Gruen ist alles was ich habe... Gruen, Gruen, Gruen is all I have...(German folklore song)
[Updated on: Sat, 18 August 2018 18:00] Report message to a moderator |
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